Bench back



FIG. 1 is a perspective view of a bench back comprising my design andillustrating unclaimed elements (seat and frame);

FIG. 2 is a perspective view of a bench back comprising my design;

FIG. 3 is a front end view of a bench back comprising my design;

FIG. 4 is a top end view of a bench back comprising my design;

FIG. 5 is a back view of a bench back comprising my design; and,

FIG. 6 is a left end view of a bench back comprising my design.

The broken line showing of the bench seat and bench frame in FIG. 1 isincluded for the purpose of illustrating environmental structure andforms no part of the claimed design.

The ornamental design for a bench back, as shown and described.